2t^2-11t+7=0

Simple and best practice solution for 2t^2-11t+7=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 2t^2-11t+7=0 equation:


Simplifying
2t2 + -11t + 7 = 0

Reorder the terms:
7 + -11t + 2t2 = 0

Solving
7 + -11t + 2t2 = 0

Solving for variable 't'.

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
3.5 + -5.5t + t2 = 0

Move the constant term to the right:

Add '-3.5' to each side of the equation.
3.5 + -5.5t + -3.5 + t2 = 0 + -3.5

Reorder the terms:
3.5 + -3.5 + -5.5t + t2 = 0 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + -5.5t + t2 = 0 + -3.5
-5.5t + t2 = 0 + -3.5

Combine like terms: 0 + -3.5 = -3.5
-5.5t + t2 = -3.5

The t term is -5.5t.  Take half its coefficient (-2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
-5.5t + 7.5625 + t2 = -3.5 + 7.5625

Reorder the terms:
7.5625 + -5.5t + t2 = -3.5 + 7.5625

Combine like terms: -3.5 + 7.5625 = 4.0625
7.5625 + -5.5t + t2 = 4.0625

Factor a perfect square on the left side:
(t + -2.75)(t + -2.75) = 4.0625

Calculate the square root of the right side: 2.015564437

Break this problem into two subproblems by setting 
(t + -2.75) equal to 2.015564437 and -2.015564437.

Subproblem 1

t + -2.75 = 2.015564437 Simplifying t + -2.75 = 2.015564437 Reorder the terms: -2.75 + t = 2.015564437 Solving -2.75 + t = 2.015564437 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + t = 2.015564437 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + t = 2.015564437 + 2.75 t = 2.015564437 + 2.75 Combine like terms: 2.015564437 + 2.75 = 4.765564437 t = 4.765564437 Simplifying t = 4.765564437

Subproblem 2

t + -2.75 = -2.015564437 Simplifying t + -2.75 = -2.015564437 Reorder the terms: -2.75 + t = -2.015564437 Solving -2.75 + t = -2.015564437 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + t = -2.015564437 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + t = -2.015564437 + 2.75 t = -2.015564437 + 2.75 Combine like terms: -2.015564437 + 2.75 = 0.734435563 t = 0.734435563 Simplifying t = 0.734435563

Solution

The solution to the problem is based on the solutions from the subproblems. t = {4.765564437, 0.734435563}

See similar equations:

| -a^2=9-6a | | 6x+38=16x-72 | | n^3-6n^2-n-6=0 | | 6p-22=8p | | -5y^2+45=0 | | 4x^2+26x-48= | | 2s^2-18s=0 | | d^2+3d+1.5=0 | | 5x^3−7x+2= | | 48x^2+22x-15= | | -4c^2+19c-21= | | 18x^2-27x-5= | | 9x^2x28x-32 | | (-4a)*(-5ab)= | | (3/5)^-3= | | (-4a)x(-5ab)= | | 4x^2+19x=5 | | (c+2)^2-5(c+2)-6=0 | | d^2+3d+1.50=y | | d^2+3d+1.50 | | -2(y+1)=3y-1 | | 15x^2+27x=0 | | 3a=a+2 | | d^2+3d+1.50=11.50 | | 5z-16=-28+2z | | 4x+(56x+6)=2 | | (3x-7)(4x+1)=0 | | 9x^2+24+16=0 | | 35n+3=16n+22 | | 3t-11-14+2t | | x^2+x-132=0 | | 6x+12+8x-15=13x |

Equations solver categories